extern int splice_grow_spd(struct pipe_inode_info *, struct splice_pipe_desc *);
extern void splice_shrink_spd(struct pipe_inode_info *,
struct splice_pipe_desc *);
+extern void spd_release_page(struct splice_pipe_desc *, unsigned int);
+extern const struct pipe_buf_operations page_cache_pipe_buf_ops;
#endif